Finding the Fourth Proportional to 65,788.08, 98,658.83 and 21,406.56

Step by Step Solution

1. Step 1: Write the proportion equation
   65,788.08 : 98,658.83 = 21,406.56 : x
2. Step 2: Convert to fraction form
   65,788.08/98,658.83 = 21,406.56/x
3. Step 3: Cross multiply
   65,788.08x = 98,658.83 × 21,406.56
4. Step 4: Simplify right side
   65,788.08x = 2,111,946,056.89
5. Step 5: Solve for x
   x = 2,111,946,056.89/65,788.08
6. Step 6: Final answer
   x = 32,102.26